Also Google Earth typically uses less precise 30 meter ground elevation data as well if anyone tries to use that as another point to check.
All of these tools and data take a lot of time to get more precise information and better answers. The free tools you find out there tend to not have this time invested and/or they have not taken the time to understand the differences in the base data sets that may be used. As the old saying goes, you get what you pay for ;-) In most cases it's good enough but when things get close you always want to use the best sources to get your best answers. Thank You, Brian Webster www.wirelessmapping.com www.Broadband-Mapping.com -----Original Message----- From: Af [mailto:[email protected]] On Behalf Of Adam Moffett Sent: Wednesday, July 22, 2015 1:32 PM To: [email protected] Subject: Re: [AFMUG] NED vs SRTM That's what I've been doing, so I'm glad to hear that's right. The problem came up when I was double checking versus Cambium Link Planner, which I'm pretty sure uses SRTM. On 7/22/2015 12:28 PM, Brian Webster wrote: > NED data gets you the actual ground elevations you should use for path and RF > studies.
